Linear multiuser receiver using novel iterative algorithm for DS/CDMA systems

Author

Li, Yue-heng ; Chen, Mmg ; Haifen, Wang ; Cheng, Shi-xin

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

Volume

1

fYear

2000

fDate

2000

Firstpage

76

Abstract

Linear decorrelating and MMSE multiuser detectors need to compute the inverse of the correlation matrix. It is too complex for practical applications especially in multipath and asynchronous environments as the long spreading codes are used. An iterative algorithm based on successive over relaxation is proposed for the implementation of both decorrelating and MMSE detectors. In the proposed scheme neither correlation coefficients nor the inverse of the cross-correlation matrix need to be computed

Keywords

code division multiple access; decorrelation; least mean squares methods; multipath channels; multiuser channels; radio receivers; spread spectrum communication; DS/CDMA systems; MMSE multiuser detector; asynchronous environment; inverse correlation matrix; iterative algorithm; linear decorrelating detector; linear multiuser receiver; long spreading codes; multipath environment; successive over relaxation; AWGN; Background noise; Decorrelation; Detectors; Frequency; Iterative algorithms; Mobile communication; Mobile handsets; Multiaccess communication; Phase detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851421

Filename

851421